Replacement track bolts & nuts for Hitachi machines, covering the ZX and EX series, each one listed against the Hitachi model it fits.
Models covered include the Hitachi EX100-5, EX120-5, ZX110-3, ZX120-3, ZX130, ZX130-3, ZX130-6, ZX130LCN, ZX130LCN-5, ZX130LCN-6, ZX135US-3 and ZX135US-5, with the full list of Hitachi models below.
Bolts stretch once they have been torqued and released, so replace bolts and nuts as a set whenever shoes or pads come off, and torque them to the machine specification.